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L3936AD

SPEECH AND 14 MEMORY DIALER WITH LED DRIVER

STMicroelectronics 

FUNCTION PIN DESCRIPTION (continued)

To dial a number from repertory memory (HKS

must be low), enter the following:

MEM (Location 0-9) or E1-E3

To save the last number dialed, enter the follow-

ing:

PROG MEM (location 0-9) or E1-E3

HOOK FLASH

D1 FLASH D2 ...etc

Hook flash may be entered into the dialed se-

quence at any point by keying in the function key,

FLASH. Flash consists of a timed break of

585ms, 300ms or 100ms depending on the Mask

option. When a FLASH key is pressed, no further

key inputs will be accepted until the hookflash

function has been dialed. The key input following

a FLASH will be stored as the initial digit of the

new number, overwriting the number dialed be-

fore the FLASH, unless it is another FLASH.

FLASH key pressed immediately after hookswitch

or LND will not clear the LND buffer unless digits

are entered following the FLASH key.

Example:

FLASH

LND not cleared

LND FLASH

LND not cleared

LND FLASH D1 D2

LND buffer will contain D1, D2

PAUSE/LAST NUMBER DIALED

If the PAUSE/LND key is pressed right after off

hook or FLASH key, it is considered as LND, if it

is pressed after a digit, it will be considered as

PAUSE.

LAST NUMBERED DIALED

OFF-HOOK PAUSE/LND or FLASH PAUSE/LND

Last number dialing is accomplished by entering

the PAUSE/LND key.

PAUSE

OFF-HOOK D1 PAUSE/LND D2 ...etc

A pause may be entered into the dialed sequence

at any point by keying in the special function key,

L3916A - L3926A - L3936A

PAUSE/LND. Pause inserts a 3.1 second delay

into the dialing sequence. The total delay, includ-

ing pre-digit and post-digit pauses is shown in Ta-

ble 3.

Table 3: Special Function Delays

Each delay shown below represents the time re-

quired after the special function key is depressed

until a new digit is dialed. The time is considered

”FIRST” key if all previous inputs have been com-

pletely dialed. The time is considered ”AUTO” if in

redial, or if previous dialling is still in progress.

Function First/Auto

SOFTSWITC H

PAUSE

FIRST

AUTO

FIRST

AUTO

Delay (seconds)

Pulse

To ne

0.2

1.0

2.6

3.0

3.4

3.1

SOFTSWITCH FUNCTION USING TONE/PULSE

MODE SWITCH

When dialing in Pulse mode after off-hook,

switching TONE/PULSE mode switch from Pulse

to Tone will cause the device to change the sig-

naling mode into tone signal and store the soft-

switch function in the LND memory for redial. To

redial the softswitch function (mixed mode dialing)

in the pulse mode after going on-hook and back

to off-hook, you have to switch the TONE/PULSE

mode switch back to pulse mode either before go-

ing on-hook or after off-hook or during on-hook.

Subsequentmode change from Tone to Pulse will

change the signaling mode to pulse dialing se-

quence but this mode change will not be stored in

.the LND memory.

When dialing in Tone mode after off-hook, a

switching of TONE/PULSE mode Switch from

Tone to Pulse will cause the device to change the

signaling mode into pulse mode but this mode

change will not be stored in the LND memory.

When LND key is pressed in Tone mode after go-

ing off-hook, the device will output all tone sig-

nals.

A pacifier tone of 75ms is provided after 32ms de-

bounce time when switching from Pulse to Tone

mode.

Redial by the LND key will repeat the mixed dial-

ing sequence in Pulse mode.

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